Radial lip shaft seal

Details Radial lip shaft seal Radial lip shaft seal

1997-06-19

1999-11-02

Reichard, Lynne

Seal for a joint or juncture

Seal between relatively movable parts

Circumferential contact seal for other than piston

277584, F16S 1532

Patent

active

059755385

ABSTRACT:
A lip seal for use in low torque, high pressure applications including a rigid retainer, a resilient body essentially covering the retainer and an inner support member. The inner support member provides spacing and orienting functions for the other elements. The inner support member has a radial dimension and outer diameter smaller than the inner diameter of an outer axial wall of the retainer so that a gap is maintained between the retainer and the inner support member under a variety of pressure, torque and shaft deflection conditions. Gap maintaining elements, preferably in the form of axially extending guides, prevent contact between the rigid seal elements. The guides may further comprise nub portions at one end which contain the inner support member in the cavity prior to installation on the shaft.

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patent: 5201529 (1993-04-01), Heinzen
patent: 5211406 (1993-05-01), Katzensteiner
patent: 5370404 (1994-12-01), Klein et al.
patent: 5503408 (1996-04-01), Hemann et al.

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